Merge pull request #7552 from gneverov/issue_3913
add support for array.extend(iterable) - fixes #3913
This commit is contained in:
commit
c63711ada6
|
@ -458,26 +458,32 @@ STATIC mp_obj_t array_extend(mp_obj_t self_in, mp_obj_t arg_in) {
|
|||
|
||||
// allow to extend by anything that has the buffer protocol (extension to CPython)
|
||||
mp_buffer_info_t arg_bufinfo;
|
||||
mp_get_buffer_raise(arg_in, &arg_bufinfo, MP_BUFFER_READ);
|
||||
if (mp_get_buffer(arg_in, &arg_bufinfo, MP_BUFFER_READ)) {
|
||||
size_t sz = mp_binary_get_size('@', self->typecode, NULL);
|
||||
|
||||
size_t sz = mp_binary_get_size('@', self->typecode, NULL);
|
||||
// convert byte count to element count
|
||||
size_t len = arg_bufinfo.len / sz;
|
||||
|
||||
// convert byte count to element count
|
||||
size_t len = arg_bufinfo.len / sz;
|
||||
// make sure we have enough room to extend
|
||||
// TODO: alloc policy; at the moment we go conservative
|
||||
if (self->free < len) {
|
||||
self->items = m_renew(byte, self->items, (self->len + self->free) * sz, (self->len + len) * sz);
|
||||
self->free = 0;
|
||||
} else {
|
||||
self->free -= len;
|
||||
}
|
||||
|
||||
// make sure we have enough room to extend
|
||||
// TODO: alloc policy; at the moment we go conservative
|
||||
if (self->free < len) {
|
||||
self->items = m_renew(byte, self->items, (self->len + self->free) * sz, (self->len + len) * sz);
|
||||
self->free = 0;
|
||||
// extend
|
||||
mp_seq_copy((byte *)self->items + self->len * sz, arg_bufinfo.buf, len * sz, byte);
|
||||
self->len += len;
|
||||
} else {
|
||||
self->free -= len;
|
||||
// Otherwise argument must be an iterable of items to append
|
||||
mp_obj_t iterable = mp_getiter(arg_in, NULL);
|
||||
mp_obj_t item;
|
||||
while ((item = mp_iternext(iterable)) != MP_OBJ_STOP_ITERATION) {
|
||||
array_append(self_in, item);
|
||||
}
|
||||
}
|
||||
|
||||
// extend
|
||||
mp_seq_copy((byte *)self->items + self->len * sz, arg_bufinfo.buf, len * sz, byte);
|
||||
self->len += len;
|
||||
|
||||
return mp_const_none;
|
||||
}
|
||||
STATIC MP_DEFINE_CONST_FUN_OBJ_2(array_extend_obj, array_extend);
|
||||
|
|
Loading…
Reference in New Issue